If 15 men can do a piece of work in 20 days. In how many days can 25 men finish the same work?

If 15 men can do a piece of work in 20 days. In how many days can 25 men finish the same work?

Explanation

15 men × 20 days = 300 man-days (total work)

Now, with 25 men:

300 man-days ÷ 25 men = 12 days